From c1005355718055983912ebdd79357b11894e0958 Mon Sep 17 00:00:00 2001 From: Denys Vlasenko Date: Thu, 29 Nov 2018 11:44:10 +0100 Subject: cat,nl: fix handling of open errors $ cat -n does_not_exist; echo $? cat: does_not_exist: No such file or directory 1 function old new delta print_numbered_lines 118 129 +11 nl_main 196 201 +5 cat_main 421 425 +4 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 3/0 up/down: 20/0) Total: 20 bytes Signed-off-by: Denys Vlasenko --- libbb/print_numbered_lines.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) (limited to 'libbb') diff --git a/libbb/print_numbered_lines.c b/libbb/print_numbered_lines.c index 9a8a514..d6459d7 100644 --- a/libbb/print_numbered_lines.c +++ b/libbb/print_numbered_lines.c @@ -8,12 +8,16 @@ #include "libbb.h" -void FAST_FUNC print_numbered_lines(struct number_state *ns, const char *filename) +int FAST_FUNC print_numbered_lines(struct number_state *ns, const char *filename) { FILE *fp = fopen_or_warn_stdin(filename); - unsigned N = ns->start; + unsigned N; char *line; + if (!fp) + return EXIT_FAILURE; + + N = ns->start; while ((line = xmalloc_fgetline(fp)) != NULL) { if (ns->all || (ns->nonempty && line[0]) @@ -27,4 +31,6 @@ void FAST_FUNC print_numbered_lines(struct number_state *ns, const char *filenam ns->start = N; fclose(fp); + + return EXIT_SUCCESS; } -- cgit v1.1